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(svn r20396) -Codechange: introduce a helper function to test whether an industry temporarily refues to accept some cargo

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yexo
2010-08-07 20:11:27 +00:00
parent 79dd7df9fb
commit 5162f28c27
4 changed files with 26 additions and 16 deletions
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22
src/newgrf_industries.cpp
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@@ -17,6 +17,7 @@
#include "newgrf_commons.h"
#include "newgrf_text.h"
#include "newgrf_town.h"
#include "newgrf_cargo.h"
#include "window_func.h"
#include "town.h"
#include "company_base.h"
@@ -583,3 +584,24 @@ void GetIndustryResolver(ResolverObject *ro, uint index)
Industry *i = Industry::Get(index);
NewIndustryResolver(ro, i->location.tile, i, i->type);
}
/**
* Check whether an industry temporarily refuses to accept a certain cargo.
* @param ind The industry to query.
* @param cargo_type The cargo to get information about.
* @pre cargo_type is in ind->accepts_cargo.
* @return Whether the given industry refuses to accept this cargo type.
*/
bool IndustryTemporarilyRefusesCargo(Industry *ind, CargoID cargo_type)
{
assert(cargo_type == ind->accepts_cargo[0] || cargo_type == ind->accepts_cargo[1] || cargo_type == ind->accepts_cargo[2]);
const IndustrySpec *indspec = GetIndustrySpec(ind->type);
if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) {
uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO,
0, GetReverseCargoTranslation(cargo_type, indspec->grf_prop.grffile),
ind, ind->type, ind->location.tile);
return res == 0;
}
return false;
}